获取Tkinter上的顶级级别列表

Question

我想知道是否有一种简单的方法可以从特定的窗口获得所有的顶层，包括顶层内的顶层。在下面的代码中，我留下了一个我想做的例子：

from tkinter import Tk, Toplevel

v = Tk()
v2 = Toplevel(v)
v3 = Toplevel(v2)
v4 = Toplevel(v2)

def toplevels(ventana):
    print("Here I return the list of all toplevels, in case of choosing the main window, it should return:")
    print()
    print(".")
    print(".toplevel")
    print(".toplevel.toplevel")
    print(".toplevel.toplevel2")

toplevels(v)

Tkinter中是否有实现这一点的内置功能？

Answer 1

每个小部件都有其子部件的列表，使用递归可以获得所有小部件。

from tkinter import Tk, Toplevel, Label

v = Tk()
v2 = Toplevel(v)
v3 = Toplevel(v2)
v4 = Toplevel(v2)
Label(v)
Label(v2)
Label(v3)
Label(v4)

def toplevels(ventana):
    for k, v in ventana.children.items():
        if isinstance(v, Toplevel):
            print('Toplevel:', k, v)
        else:
            print('   other:', k, v)
        toplevels(v)

toplevels(v)

后果

Toplevel: !toplevel .!toplevel
Toplevel: !toplevel .!toplevel.!toplevel
   other: !label .!toplevel.!toplevel.!label
Toplevel: !toplevel2 .!toplevel.!toplevel2
   other: !label .!toplevel.!toplevel2.!label
   other: !label .!toplevel.!label
   other: !label .!label